Accelerating Seismic Imaging on GPUs

Souza, Paulo Sérgio Lopes de; Teixeira, Thiago; Panetta, Jairo; Raposo, Carlos A.; Romanelli, A.; Roxo, F.; Pedrosa, Iván; Sinedino, S.; Monnerat, Luiz; Carneiro, L.; Albrecht, Carlos

doi:10.3997/2214-4609.20149095

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“…2010), Hess, CGGVeritas, Chevron, Headwave, Acceleware (Foltinek et al . 2009), Tsunami, Petrobras (Souza et al . 2011) and SeismicCity are among the first in this research area.…”

Section: Introductionmentioning

confidence: 99%

The issues of prestack reverse time migration and solutions with Graphic Processing Unit implementation

Liu

et al. 2012

Geophysical Prospecting

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A B S T R A C TPrestack reverse time migration (RTM) is a very useful tool for seismic imaging but has mainly three bottlenecks: highly intensive computation cost, low-frequency band imaging noise and massive memory demand. Traditionally, PC-clusters with thousands of computation nodes are used to perform RTM but it is too expensive for small companies and oilfields. In this article, we use Graphic Processing Unit (GPU) architecture, which is cheaper and faster to implement RTM and we obtain an order of magnitude higher speedup ratio to solve the problem of intensive computation cost. Aiming at the massive memory demand, we adopt the pseudo random boundary condition that sacrifices the computation cost but reduces the memory demand. For rugged topography RTM, it is difficult to deal with the rugged free boundary condition with the finite difference method. We employ a simplified boundary condition that avoids the abundant logical judgment to make the GPU implementation possible and does not induce any sacrifice on efficiency. Besides, we have also done some tests on multi-GPU implementation for wide azimuth geometries using the latest GPU cards and drivers. Finally, we discuss the challenges of anisotropy RTM and GPU solutions. All the jobs stated above are based on GPU and the synthetic data examples will show the efficiency of the algorithm and solutions.

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“…2010), Hess, CGGVeritas, Chevron, Headwave, Acceleware (Foltinek et al . 2009), Tsunami, Petrobras (Souza et al . 2011) and SeismicCity are among the first in this research area.…”

Section: Introductionmentioning

confidence: 99%

The issues of prestack reverse time migration and solutions with Graphic Processing Unit implementation

Liu

et al. 2012

Geophysical Prospecting

View full text Add to dashboard Cite

show abstract

Accelerating Seismic Imaging on GPUs

Cited by 1 publication

References 0 publications

The issues of prestack reverse time migration and solutions with Graphic Processing Unit implementation

The issues of prestack reverse time migration and solutions with Graphic Processing Unit implementation

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